IP Library › Granted Patent US 4,244,243
Granted Patent Utility
US 4,244,243 · App. 05/969,832

Variable leverage gearing

Inventor: Thomas M. McCaw
Patented Case View Patent ↗
Granted: Jan 13, 1981 Filed: Dec 15, 1978
Inventor
Thomas M. McCaw

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,244,243
App. No.
05/969,832
Filed
1978-12-15
Granted
1981-01-13
Kind
A